Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5461  ·  NGC 5474  ·  NGC 5477
M 101, Pinwheel Galaxy, Juan B. Torre Valle
M 101, Pinwheel Galaxy
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M 101, Pinwheel Galaxy

M 101, Pinwheel Galaxy, Juan B. Torre Valle
M 101, Pinwheel Galaxy
Powered byPixInsight

M 101, Pinwheel Galaxy

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Description

The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away from Earth in the constellation Ursa Major. Discovered by Pierre Méchain on March 27, 1781, it was communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.

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M 101, Pinwheel Galaxy, Juan B. Torre Valle